1. Open MyPBX's web interface. Under "SIP Connection", under the tab "Main", enable DNS SRV.
DNS SRV Look Up: YES
2. In Basic settings - External lines add SIP trunk.
Enter the following data:
Provider's name: Zadarma
Host/IP: sip.zadarma.com
Domain: sip.zadarma.com
User: Your sip number (for example 111111) from personal account
Authentication name: Your sip number (for example 111111) from personal account
Password: Your password of sip number from "SIP Connection" in personal account.
FROM Field: Your sip number (for example 111111) from personal account
Active number: Your sip number (for example 111111) from personal account
Caller ID: Your sip number (for example 111111) from personal account
Realm: sip.zadarma.com
Provider's name: Zadarma
Host/IP: pbx.zadarma.com
Domain: pbx.zadarma.com
User: Your PBX number (for example 1234-100) from personal account
Authentication name: Your PBX number (for example 1234-100) from personal account
Password: Your password of PBX number from "My PBX - Extension numbers" in personal account.
FROM Field: Your PBX number (for example 1234-100) from personal account
Active number: Your PBX number (for example 1234-100) from personal account
Caller ID: Your PBX number (for example 1234-100) from personal account
Realm: pbx.zadarma.com